Regarding the flow rate in distillation
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In the distillation process, there is a total amount that needs to be distilled, and continuous reflux is required. Question: How is the total flow rate determined? Do I need to consider the reflux issue for feeding? Thank you for your help
The total amount is the feed rate; reflux needs to be taken into account. Reflux and recovery can be calculated manually, or adjustments can be made based on operational convergence and the desired metrics
The total amount depends on your production requirements; it will be whatever volume needs to be processed
If performing batch operations, can Aspen be used for simulation?
It’s possible to use the batchfrac model, but it’s rather complicated to set it up. I’ve also been looking for examples of batch distillation recently; I searched on Haichuan for a long time yesterday, and many people were asking for such examples, but none were uploaded. . .
I also want to do intermittent distillation; please give me a lot of help, moderators
Since the experiments that people conduct are mostly batch distillation, many people want to use ASPEN to see if it’s possible to obtain results similar to those obtained in experiments. Well, however, the accuracy of batch simulations is somewhat lower compared to that of continuous distillation simulations. Intermittent distillation consists of two operating modes: one is operation with a constant top composition, and the other is operation with a constant reflux ratio.